Normally used in Laundry, grated and added to a wash cycle, about 1/16th a bar's worth the Fels-Naptha per load, will eliminate residual resins that can remain in clothes up to a year according to the manufacturer.
Naptha is also used as a home remedy in the treatment of contact dermatitis caused by exposure to poison ivy, poison oak, and other oil-transmitted organic skin-irritants. Washing the skin directly with the soap helps break up the oils that carry the toxin.
Appearance: Yellow Hard Bar
Solubility: Soluble in water
Natural or Synthetic: Synthetic
Recommended Retest or Shelf Life: Indefinite
Storage: Cool Dark Dry, Tightly Closed.
Ingredients: Cleaners, Soil and Stain Removers, Chelating Agents, colorants, Perfume. CONTAINS NO NAPHTHALENE
Not for Ingestion. While sometimes also sold next to personal-care body soaps it should not be used as an overall body soap or regular laundry additive since it contains Stoddard solvent, a skin and eye irritant.